A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Variable-height large-side-span hybrid beam cable-stayed bridge
The invention relates to the technical field of bridge engineering, in particular to a variable-height large-side-span hybrid beam cable-stayed bridge which comprises a bridge tower, bridge piers, a main beam and inhaul cables, the bridge piers comprise side piers and auxiliary piers, and the main beam comprises a side-span equal-height concrete beam, a side-span variable-height concrete beam, a tower area equal-height concrete beam, a steel-concrete combined section and a middle-span equal-height steel beam. The side span beam body adopts a variable-height and large-span structural beam body; the number of the auxiliary piers is reduced, the water blocking rate is reduced, navigation and flood control are facilitated, and investment is saved; the side span dead weight of the hybrid beam cable-stayed bridge is obviously increased, and the load of a mid-span main beam does not need to be balanced by adopting a side span weight mode at the top of an auxiliary pier; the rigidity is large, the beam end corner is small, and high-speed running smoothness of a train is facilitated; a hanging basket is adopted for symmetrical suspension irrigation construction and is synchronously constructed with a bridge tower; the cast-in-place support is small in erecting range, wide in construction application range, convenient, fast, good in economical efficiency, obviously shortened in construction period, and beneficial to flood discharge in the construction period and construction safety.
本发明涉及桥梁工程技术领域，具体为一种变高度大边跨混合梁斜拉桥，包括桥塔、桥墩、主梁和拉索，桥墩包括边墩和辅助墩，主梁包括边跨等高混凝土梁、边跨变高混凝土梁、塔区等高混凝土梁、钢混结合段和中跨等高钢梁，边跨梁体采用变高度、大跨度的结构梁体；可以很好的适应复杂地形，减少辅助墩的数量，降低阻水率，利于通航及防洪，节省投资；混合梁斜拉桥的边跨自重显著增加，无需在辅助墩顶采取边跨压重的形式来平衡中跨主梁的荷载；刚度大，梁端转角小，利于列车高速行车的平顺性；采用挂篮对称悬灌施工，且与桥塔同步施工；现浇支架搭设范围小，施工适用范围广，方便快捷，经济性好，工期明显缩短，且有利于施工期行洪及施工安全。
Variable-height large-side-span hybrid beam cable-stayed bridge
The invention relates to the technical field of bridge engineering, in particular to a variable-height large-side-span hybrid beam cable-stayed bridge which comprises a bridge tower, bridge piers, a main beam and inhaul cables, the bridge piers comprise side piers and auxiliary piers, and the main beam comprises a side-span equal-height concrete beam, a side-span variable-height concrete beam, a tower area equal-height concrete beam, a steel-concrete combined section and a middle-span equal-height steel beam. The side span beam body adopts a variable-height and large-span structural beam body; the number of the auxiliary piers is reduced, the water blocking rate is reduced, navigation and flood control are facilitated, and investment is saved; the side span dead weight of the hybrid beam cable-stayed bridge is obviously increased, and the load of a mid-span main beam does not need to be balanced by adopting a side span weight mode at the top of an auxiliary pier; the rigidity is large, the beam end corner is small, and high-speed running smoothness of a train is facilitated; a hanging basket is adopted for symmetrical suspension irrigation construction and is synchronously constructed with a bridge tower; the cast-in-place support is small in erecting range, wide in construction application range, convenient, fast, good in economical efficiency, obviously shortened in construction period, and beneficial to flood discharge in the construction period and construction safety.
本发明涉及桥梁工程技术领域，具体为一种变高度大边跨混合梁斜拉桥，包括桥塔、桥墩、主梁和拉索，桥墩包括边墩和辅助墩，主梁包括边跨等高混凝土梁、边跨变高混凝土梁、塔区等高混凝土梁、钢混结合段和中跨等高钢梁，边跨梁体采用变高度、大跨度的结构梁体；可以很好的适应复杂地形，减少辅助墩的数量，降低阻水率，利于通航及防洪，节省投资；混合梁斜拉桥的边跨自重显著增加，无需在辅助墩顶采取边跨压重的形式来平衡中跨主梁的荷载；刚度大，梁端转角小，利于列车高速行车的平顺性；采用挂篮对称悬灌施工，且与桥塔同步施工；现浇支架搭设范围小，施工适用范围广，方便快捷，经济性好，工期明显缩短，且有利于施工期行洪及施工安全。
Variable-height large-side-span hybrid beam cable-stayed bridge
一种变高度大边跨混合梁斜拉桥
WEN WANGQING (author) / YAN AIGUO (author) / ZENG MIN (author) / LIU MING (author) / ZHANG CHAOCHAO (author) / GUO PAN (author) / ZHANG XIAOJIANG (author) / LUO CHUNLIN (author) / ZHOU JI (author) / YIN PENGCHENG (author)
2023-12-05
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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